<template>
  <div>
    <el-upload
      :action="uploadUrl"
      :before-upload="handleBeforeUpload"
      :on-success="handleUploadSuccess"
      :on-error="handleUploadError"
      name="file"
      :show-file-list="false"
      :headers="headers"
      class="editor-img-uploader"
      v-if="type == 'url'"
    >
      <i ref="uploadRef" class="editor-img-uploader"></i>
    </el-upload>
  </div>
  <div class="editor">
    <quill-editor
      ref="quillEditorRef"
      v-model:content="content"
      contentType="html"
      @textChange="() => $emit('update:modelValue', content)"
      :options="options"
      :style="styles"
    />
  </div>
</template>

<script setup lang="ts">
import { QuillEditor } from '@vueup/vue-quill'
import '@vueup/vue-quill/dist/vue-quill.snow.css'
import { getToken } from '@/utils/auth'
import { proxy } from '@/utils/provide'
import type { UploadRawFile } from 'element-plus'
type Props = {
  modelValue: string
  height?: number
  minHeight?: number
  readOnly: boolean
  fileSize: number
  type: string
}
const {
  modelValue,
  height,
  minHeight,
  readOnly = false,
  fileSize = 5,
  type = 'url',
} = defineProps<Props>()
const quillEditorRef = ref()
const uploadUrl = ref(import.meta.env.VITE_APP_BASE_API + '/common/upload') // 上传的图片服务器地址
const headers = ref({
  Authorization: 'Bearer ' + getToken(),
})

const uploadRef = useTemplateRef('uploadRef')
const options = ref({
  theme: 'snow',
  bounds: document.body,
  debug: 'warn',
  modules: {
    // 工具栏配置
    toolbar: [
      ['bold', 'italic', 'underline', 'strike'], // 加粗 斜体 下划线 删除线
      ['blockquote', 'code-block'], // 引用  代码块
      [{ list: 'ordered' }, { list: 'bullet' }], // 有序、无序列表
      [{ indent: '-1' }, { indent: '+1' }], // 缩进
      [{ size: ['small', false, 'large', 'huge'] }], // 字体大小
      [{ header: [1, 2, 3, 4, 5, 6, false] }], // 标题
      [{ color: [] }, { background: [] }], // 字体颜色、字体背景颜色
      [{ align: [] }], // 对齐方式
      ['clean'], // 清除文本格式
      ['link', 'image', 'video'], // 链接、图片、视频
    ],
  },
  placeholder: '请输入内容',
  readOnly: readOnly,
})

const styles = computed(() => {
  let style: AnyCss = {}
  if (minHeight) {
    style.minHeight = `${minHeight}px`
  }
  if (height) {
    style.height = `${height}px`
  }
  return style
})

const content = ref('')
watch(
  () => modelValue,
  (v) => {
    if (v !== content.value) {
      content.value = v === undefined ? '<p></p>' : v
    }
  },
  { immediate: true }
)

// 如果设置了上传地址则自定义图片上传事件
onMounted(() => {
  if (type == 'url') {
    let quill = quillEditorRef.value.getQuill()
    let toolbar = quill.getModule('toolbar')
    toolbar.addHandler('image', (value: any) => {
      if (value) {
        uploadRef.value?.click()
      } else {
        quill.format('image', false)
      }
    })
  }
})

// 上传前校检格式和大小
function handleBeforeUpload(file: UploadRawFile) {
  const type = ['image/jpeg', 'image/jpg', 'image/png', 'image/svg']
  const isJPG = type.includes(file.type)
  //检验文件格式
  if (!isJPG) {
    proxy.$modal.msgError(`图片格式错误!`)
    return false
  }
  // 校检文件大小
  if (fileSize) {
    const isLt = file.size / 1024 / 1024 < fileSize
    if (!isLt) {
      proxy.$modal.msgError(`上传文件大小不能超过 ${fileSize} MB!`)
      return false
    }
  }
  return true
}

// 上传成功处理
function handleUploadSuccess(res: any) {
  // 如果上传成功
  if (res.code == 200) {
    // 获取富文本实例
    let quill = toRaw(quillEditorRef.value).getQuill()
    // 获取光标位置
    let length = quill.selection.savedRange.index
    // 插入图片，res.url为服务器返回的图片链接地址
    quill.insertEmbed(
      length,
      'image',
      import.meta.env.VITE_APP_BASE_API + res.fileName
    )
    // 调整光标到最后
    quill.setSelection(length + 1)
  } else {
    proxy.$modal.msgError('图片插入失败')
  }
}

// 上传失败处理
function handleUploadError() {
  proxy.$modal.msgError('图片插入失败')
}
</script>

<style>
.editor-img-uploader {
  display: none;
}
.editor,
.ql-toolbar {
  white-space: pre-wrap !important;
  line-height: normal !important;
}
.quill-img {
  display: none;
}
.ql-snow .ql-tooltip[data-mode='link']::before {
  content: '请输入链接地址:';
}
.ql-snow .ql-tooltip.ql-editing a.ql-action::after {
  border-right: 0px;
  content: '保存';
  padding-right: 0px;
}
.ql-snow .ql-tooltip[data-mode='video']::before {
  content: '请输入视频地址:';
}
.ql-snow .ql-picker.ql-size .ql-picker-label::before,
.ql-snow .ql-picker.ql-size .ql-picker-item::before {
  content: '14px';
}
.ql-snow .ql-picker.ql-size .ql-picker-label[data-value='small']::before,
.ql-snow .ql-picker.ql-size .ql-picker-item[data-value='small']::before {
  content: '10px';
}
.ql-snow .ql-picker.ql-size .ql-picker-label[data-value='large']::before,
.ql-snow .ql-picker.ql-size .ql-picker-item[data-value='large']::before {
  content: '18px';
}
.ql-snow .ql-picker.ql-size .ql-picker-label[data-value='huge']::before,
.ql-snow .ql-picker.ql-size .ql-picker-item[data-value='huge']::before {
  content: '32px';
}
.ql-snow .ql-picker.ql-header .ql-picker-label::before,
.ql-snow .ql-picker.ql-header .ql-picker-item::before {
  content: '文本';
}
.ql-snow .ql-picker.ql-header .ql-picker-label[data-value='1']::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value='1']::before {
  content: '标题1';
}
.ql-snow .ql-picker.ql-header .ql-picker-label[data-value='2']::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value='2']::before {
  content: '标题2';
}
.ql-snow .ql-picker.ql-header .ql-picker-label[data-value='3']::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value='3']::before {
  content: '标题3';
}
.ql-snow .ql-picker.ql-header .ql-picker-label[data-value='4']::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value='4']::before {
  content: '标题4';
}
.ql-snow .ql-picker.ql-header .ql-picker-label[data-value='5']::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value='5']::before {
  content: '标题5';
}
.ql-snow .ql-picker.ql-header .ql-picker-label[data-value='6']::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value='6']::before {
  content: '标题6';
}
.ql-snow .ql-picker.ql-font .ql-picker-label::before,
.ql-snow .ql-picker.ql-font .ql-picker-item::before {
  content: '标准字体';
}
.ql-snow .ql-picker.ql-font .ql-picker-label[data-value='serif']::before,
.ql-snow .ql-picker.ql-font .ql-picker-item[data-value='serif']::before {
  content: '衬线字体';
}
.ql-snow .ql-picker.ql-font .ql-picker-label[data-value='monospace']::before,
.ql-snow .ql-picker.ql-font .ql-picker-item[data-value='monospace']::before {
  content: '等宽字体';
}
</style>
